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Video Head Impulse Testing: From Bench to Bedside.

07:00 EST 14th January 2020 | BioPortfolio

Summary of "Video Head Impulse Testing: From Bench to Bedside."

Over 30 years ago, the head impulse test (HIT) was measured with search coil recordings and it provided robust evidence for a new test of vestibular function that could detect impairment of a single semicircular canal, that is, the lateral canal. Over the next two decades, the diagnostic spectrum of HIT was expanded to the testing of vertical canals, differentiation of central from peripheral vestibulopathy, and incorporation of visual interaction - the suppressed head impulse. However, HIT measurement was limited to very few specialized laboratories that were able to maintain the time-consuming and expensive operation of the scleral search coil system, which is the gold standard in eye movement recording. The video HIT (vHIT) was validated for the first time over 10 years ago, against the search coils, and its introduction into dizzy clinics worldwide has revolutionized the practice of neuro-otology. Here we review the basic physiology, practical aspects, and clinical application of the vHIT.

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This article was published in the following journal.

Name: Seminars in neurology
ISSN: 1098-9021
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Medical and Biotech [MESH] Definitions

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Identification of SACCADES during a rapid head rotation to assess VESTIBULOOCULAR REFLEX.

Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.

Used with articles which include video files or clips, or for articles which are entirely video.

Endoscopic surgical procedures performed with visualization via video transmission. When real-time video is combined interactively with prior CT scans or MRI images, this is called image-guided surgery (see SURGERY, COMPUTER-ASSISTED).

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